Rotax 912 ULS 3 - Lubrication System Description; System Overview; Crankcase and Oil Pump; Oil Circuit and Sensor

Effectivity: 912 Series
Edition 1 / Rev. 0
d04055
page 67
May 01/2007
BRP-Rotax
INSTALLATION MANUAL
13) Lubrication system
13.1) Description of the system
See Fig. 40.
The ROTAX 912 engine is provided with a dry sump forced lubrication system
with a oil pump with integrated pressure regulator.
◆ NOTE: The oil pump is driven by the camshaft.
The oil pump sucks the motor oil from the oil tank (1) via the oil cooler (2) and
forces it through the oil filter to the points of lubrication (lubricates also the
propeller governor).
The surplus oil emerging from the points of lubrication accumulates on the
bottom of crankcase and is forced back to the oil tank by the piston blow-by
gases.
◆ NOTE: The oil circuit is vented via nipple (3) in the oil tank.
For the completion of the lubrication system only the following connections need
to be established:
Oil circuit
oil tank (outlet) to oil cooler
oil cooler to oil pump (inlet)
oil return to oil tank (inlet)
oil tank - venting line
1
2
3
Fig. 40
09160